I bought this truck almost 5 years ago it had 85,000 miles on it when I bought it it now has 123,000 and I have been using Rotella 15/40 - T-4 and have always change my oil at around 5,000 miles and i see most people don’t change their oil until 7,500 or more it’s been awesome I love the oil and the protection that it has, But I have got a question about the T-5 will it harm my engine if I wanna switch to synthetic T-5 or would I be better off staying with T-4 ?????

Although this product has many modern applications, I use Rotella 15W-40 and 10W-30 in all my antique tractors that call for 30 and 40 weight oil. It's much better than what they've been run on for the bulk of their life and has no doubt extended the lives of their old engines.

Wish there wasn't a limit because I would have bought more.

Great price and delivered in two days!

ordered and it was here in 3 days

If you could find them in stock, it’s a great price!

Fair price, convenient packaging.

Been using this oil for years

A perfect way to buy bulky items. It shippped quickly and delivered by our friendly fdx driver.

OKAY! Price could be better